Professor Sutep Gonlachanvit,
MD Director

Center of Excellence in Neurogastroenterology and Motility

Center of Excellence in Neurogastroenterology and Motility, Faculty of Medicine, Chulalongkorn University was established in 2003. This center dedicated to the researches, patient services on functional gastrointestinal disorders and also a training center for advanced Neurogastroenterology and Motility fellowship program.

Our services include breath test, esophageal manometry, 24 hr pH-impedance monitoring, video fluoroscopy of swallowing study, antroduodenal manometry, anorectal manometry and other specialized tests to provide service and research for patients with symptoms and disorders related to the gastrointestinal motility such as GERD, bloating, constipation, and fecal incontinence.

Our Services

We offer the following advanced diagnostic procedures.

High Resolution Esophageal Impedance Manometry (HRIM)

Measures pressures and fluid movement in the esophagus from upper to lower esophageal sphincter

Hydrogen breath test

Diagnosis of small bowel bacterial overgrowth & carbohydrate malabsorption

Pharyngeal Manometry

Quantification of propulsive and resistive problems within the pharyngoesophageal segment and their respective possible relations.

24-hour pH/Impedance Reflux Monitoring

Ambulatory Combined Multichannel Intraluminal Impedance and pH (MII-pH) Monitoring

Videofluoroscopic Swallow Study (VFSS)

Dynamic radiological technique. Evaluates signs of impaired efficacy and safety of swallowing

Saliva Flow Rate Test

Xerostomia evaluation. Unstimulated salivary flow rate test.

Providers and Staff

Partner Websites

Thai Neurogastroenterology and Motility Society (TNMS)

Faculty of Medicine, Chulalongkorn University

Department of Internal Medicine, Faculty of Medicine, Chulalongkorn University

Journal of Neurogastroenterology and Motility

Asian Neurogastroenterology an Motility Association (ANMA)

Faculty of Medicine, Chulalongkorn University offers opportunities for international students and visitors by providing graduate programs, observership programs and short courses. Visit for more information.